acrylic paint
丙烯───propylene;颜料───Pigment
trouble is that the ethane route to making ethylene produces virtually no propylene.───问题在于这种用乙烷制作乙烯的生产流程几乎不会伴有丙烯产生。
preservative used is usually ethylene glycol or propylene glycol, as alcohol will evaporate quickly and the traps will dry out.───常用防腐剂是乙二醇或丙二醇，因为随着酒精快速挥发，捕集器也随之恢复干燥。
too means less propylene, since it is also a by-product of petrol production.───既然丙烯也是石油工业产品的副产物，这也意味着其产量缩水。
The feasibility of this method is demonstrated by a case study of precise measurement of propylene flows for an acrylonitrile unit.───丙烯腈装置原料丙烯流量精确测量实例验证了该方法的可行性。
Both upper sealing rings in the lower liner seal are similar and made of Ethylene Propylene Diene Monomer rubber (EPDM).───无论在低上密封衬垫密封环相似和三元乙丙橡胶（EPDM）制成。
Sacks made out of circular cylindrical poly propylene provided with valve in the form of hexagonal terminals.───袋子用圆柱形聚丙乙烯，阀口是六角形的闭口。